Real-Time Position Detecting of Large-Area CNT-based Tactile Sensors based on Artificial Intelligence
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Published:2022-10-05
Issue:10
Volume:60
Page:793-799
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ISSN:1738-8228
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Container-title:Korean Journal of Metals and Materials
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language:en
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Short-container-title:Korean J. Met. Mater.
Author:
Cho Min-Young,Kim Seong Hoon,Kim Ji Sik
Abstract
For medical device and artificial skin applications, etc., large-area tactile sensors have attracted strong interest as a key technology. However, only complex and expensive manufacturing methods such as fine pattern alignment technology have been considered. To replace the existing smart sensor, which has to go through a complicated process, a new approach including a simple piezoresistive patch based on artificial intelligence has been suggested. Specifically, a 16-electrode terminal was connected to the edge of a polydimethylsiloxane pad where multi-walled carbon nanotube sheets are well dispersed, and a voltage input to the center of the specimen. The collected data was calculated using a voltage divider circuit to collect the voltage data. 54 random positions were marked on the pad. 4 positions were configured as the validation data set and 50 positions as the training data set. We examined whether it was possible to determine points in untrained positions using a deep neural network (DNN) and 12 different machine learning (ML) algorithms. The result of a deep neural network for untrained point location identification was MSE: 0.00026, R2: 0.991158, and the result of Random Forest, an ensemble model among ML algorithms, was MSE: 0.00845, R2: 0.971239. Real-time position detection is possible using smart sensors created by combining simple bulk materials and artificial intelligence models from research results.
Funder
Ministry of Science and ICT
National Research Foundation of Korea
Publisher
The Korean Institute of Metals and Materials
Subject
Metals and Alloys,Surfaces, Coatings and Films,Modeling and Simulation,Electronic, Optical and Magnetic Materials
Cited by
2 articles.
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